** Shares of UK-based betting firms fall after Britain's Office for Budget Responsibility says finance minister Rachel Reeves is set to increase duties on gambling firms
** OBR says from April 2026, remote gaming duty will increase to 40% from 21%; 10% bingo duty to be abolished
** From April 2027, new rate of general betting duty for remote betting will be introduced at 25%, OBR says
** General betting duty excludes self-service betting terminals, spread betting, pool bets and horse racing
** Shares in Evoke EVOK.L down 19%, earlier hit lowest since 2011
** Shares in Entain ENT.L down 2.6% and London-listed shares of Flutter Entertainment FLTRF.L down 2.3%
** Shares in Rank Group RNK.L and Winvia Entertainment WVIA.L down 1.1% and 1.3%, respectively
** Playtech PTEC.L and Gaming Realms GMRG.L down between 0.6% and 1%
(Reporting by Nithyashree R B in Bengaluru)
((NithyashreeRB@thomsonreuters.com))